[Catalyst] [OT] Search Solution

[Fayland Lam]

Sorry for a bit off topic.

I just wonder how to build a search engine for a heavy traffic site?
use KinoSearch or Plunce? or just get result from MySQL?

how those big sites build their search engine? like facebook, hi5, digg? 
use SQL to get results instead of build a file index like KinoSearch?

anyone have any idea? Thanks.

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Fayland Lam // http://www.fayland.org/